{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "78b1c477",
   "metadata": {},
   "source": [
    "-------\n",
    "* 日期：2022-10-19\\week09（周三）\n",
    "* 课程：python\n",
    "* 记录人：刘石珍\n",
    "-------"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9445b308",
   "metadata": {},
   "source": [
    "# 本周学习内容\n",
    ">1.列表的方法  \n",
    ">2.while循环"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0bfc5224",
   "metadata": {},
   "source": [
    "# 1.列表的方法\n",
    ">1.使用.Tab键查看列表的方法  \n",
    ">2.使用help（查看方法的使用规则）"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "8f670668",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan']"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names = [\"Jacks\",\"Alex\",\"Marry\",\"Jan\"]\n",
    "names"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8de1a231",
   "metadata": {},
   "source": [
    "# 1.1列表的增加"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "967024b4",
   "metadata": {},
   "outputs": [],
   "source": [
    " names.append(\"Lihua\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "9e111ac6",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan', 'Lihua', 'Lihua']"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "2329063b",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function append:\n",
      "\n",
      "append(object, /) method of builtins.list instance\n",
      "    Append object to the end of the list.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.append)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "b707dcf2",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function insert:\n",
      "\n",
      "insert(index, object, /) method of builtins.list instance\n",
      "    Insert object before index.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.insert)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "128c8905",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan', 'Lihua', 'Lihua']"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "61d429ba",
   "metadata": {},
   "outputs": [],
   "source": [
    "names.insert(2,\"liushizhen\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "70f788ba",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'liushizhen', 'liushizhen', 'Marry', 'Jan', 'Lihua', 'Lihua']"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e4295bad",
   "metadata": {},
   "source": [
    "# 2.列表的删除"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "85f4235d",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function remove:\n",
      "\n",
      "remove(value, /) method of builtins.list instance\n",
      "    Remove first occurrence of value.\n",
      "    \n",
      "    Raises ValueError if the value is not present.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.remove)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "fc37a370",
   "metadata": {},
   "outputs": [],
   "source": [
    "names.remove(\"liushizhen\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "c4e70524",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Alex', 'liushizhen', 'Marry', 'Jan', 'Lihua', 'Lihua']"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a0a0e60c",
   "metadata": {},
   "source": [
    "* 正确的删除方法的流程  \n",
    ">1.查询value是否存在列表当中  \n",
    ">2.对存在的value进行删除  \n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "45fd5729",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "\"Wang\" in names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "a2754699",
   "metadata": {},
   "outputs": [
    {
     "ename": "ValueError",
     "evalue": "list.remove(x): x not in list",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mValueError\u001b[0m                                Traceback (most recent call last)",
      "Input \u001b[1;32mIn [24]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[1;34m()\u001b[0m\n\u001b[1;32m----> 1\u001b[0m \u001b[43mnames\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mremove\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mWang\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\n",
      "\u001b[1;31mValueError\u001b[0m: list.remove(x): x not in list"
     ]
    }
   ],
   "source": [
    "names.remove(\"Wang\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "7230bb2d",
   "metadata": {},
   "outputs": [],
   "source": [
    "if \"Wang\" in names:\n",
    "    names.remove(\"Wang\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "677da548",
   "metadata": {},
   "source": [
    "# 实践：删除系统：\n",
    "## 1.如果输入的值存在，删除 2.如果输入的结果不存在，提示用户查询无结果"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "bb9780b7",
   "metadata": {},
   "outputs": [],
   "source": [
    "names = [\"Jacks\",\"Alex\",\"Marry\",\"Jan\",\"Lihua\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "bb979578",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Lihua']"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "82ce2c77",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "请输入要删除的内容：Lihua\n",
      "删除成功！\n",
      "['Jacks', 'Alex', 'Marry']\n"
     ]
    }
   ],
   "source": [
    "user_input_name = input(\"请输入要删除的内容：\")\n",
    "if user_input_name in names:\n",
    "    names.remove(user_input_name)\n",
    "    print(\"删除成功！\")\n",
    "else:\n",
    "        print(\"你输入的结果不存在，删除无效\")\n",
    "print(names)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8a8b5a05",
   "metadata": {},
   "source": [
    "* 列表的删除"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "bce53541",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 重新建立names列表数据  \n",
    "names =[\"Jacks\",\"Alex\",\"Marry\",\"Jan\",\"Lihua\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "6ab3760d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan', 'Lihua']"
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "6467c8ec",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function remove:\n",
      "\n",
      "remove(value, /) method of builtins.list instance\n",
      "    Remove first occurrence of value.\n",
      "    \n",
      "    Raises ValueError if the value is not present.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.remove)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "id": "8a95df83",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function pop:\n",
      "\n",
      "pop(index=-1, /) method of builtins.list instance\n",
      "    Remove and return item at index (default last).\n",
      "    \n",
      "    Raises IndexError if list is empty or index is out of range.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.pop)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "2f9928f3",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Lihua'"
      ]
     },
     "execution_count": 51,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names.pop()  # 直接使用pop(),删除最后一位。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 52,
   "id": "1c5264a0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan']"
      ]
     },
     "execution_count": 52,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "id": "cb24a1ab",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Alex'"
      ]
     },
     "execution_count": 53,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names.pop(1)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "id": "5bb0999a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Marry', 'Jan']"
      ]
     },
     "execution_count": 54,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 56,
   "id": "916dbdfb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 56,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(names)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 59,
   "id": "ee4033e2",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "输入删除的索引值:2\n"
     ]
    }
   ],
   "source": [
    "pop_index = int(input(\"输入删除的索引值:\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 60,
   "id": "3eaa433a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "删除成功！\n"
     ]
    }
   ],
   "source": [
    "if pop_index<len(names):\n",
    "    names.pop(pop_index)\n",
    "    print(\"删除成功！\")\n",
    "else:\n",
    "    print(\"您输入的值不在index的范围内\")\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 61,
   "id": "9b59c7e7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Marry']"
      ]
     },
     "execution_count": 61,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "656c56c2",
   "metadata": {},
   "source": [
    "### 列表的修改"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 62,
   "id": "a430ce9b",
   "metadata": {},
   "outputs": [],
   "source": [
    "names[0] = \"liushizhen\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 63,
   "id": "c9d6408a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['liushizhen', 'Marry']"
      ]
     },
     "execution_count": 63,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "de3d2222",
   "metadata": {},
   "source": [
    "### 4.列表的其他方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 64,
   "id": "dd027132",
   "metadata": {},
   "outputs": [],
   "source": [
    "names = [\"Jacks\",\"Alex\",\"Marry\",\"Jan\",\"Lihua\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 65,
   "id": "377b8c6f",
   "metadata": {},
   "outputs": [],
   "source": [
    "names.clear()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 66,
   "id": "f9649d8b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[]"
      ]
     },
     "execution_count": 66,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 78,
   "id": "61056f0c",
   "metadata": {},
   "outputs": [],
   "source": [
    "names_class1 = [\"Jacks\",\"Alex\",\"Marry\",\"Jan\",\"Lihua\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 79,
   "id": "12f5618a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function extend:\n",
      "\n",
      "extend(iterable, /) method of builtins.list instance\n",
      "    Extend list by appending elements from the iterable.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(names.extend)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 80,
   "id": "b092ad61",
   "metadata": {},
   "outputs": [],
   "source": [
    "names_class2 = [\"刘石珍\",\"杨静雯\",\"黄赛\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 81,
   "id": "6218c865",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['刘石珍', '杨静雯', '黄赛']"
      ]
     },
     "execution_count": 81,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names_class2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 86,
   "id": "451dbc13",
   "metadata": {},
   "outputs": [],
   "source": [
    "names_class1.extend(names_class2)  # 注意：使用列表的方法的列表进行扩展"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 87,
   "id": "74c4814e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Jacks', 'Alex', 'Marry', 'Jan', 'Lihua', '刘石珍', '杨静雯', '黄赛']"
      ]
     },
     "execution_count": 87,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "names_class1"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "763087ee",
   "metadata": {},
   "source": [
    "* sort()排序"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 88,
   "id": "438d4c4c",
   "metadata": {},
   "outputs": [],
   "source": [
    "立定跳远_男生 = [230,250,245,255,260,270]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 89,
   "id": "80bf76d0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in function sort:\n",
      "\n",
      "sort(*, key=None, reverse=False) method of builtins.list instance\n",
      "    Sort the list in ascending order and return None.\n",
      "    \n",
      "    The sort is in-place (i.e. the list itself is modified) and stable (i.e. the\n",
      "    order of two equal elements is maintained).\n",
      "    \n",
      "    If a key function is given, apply it once to each list item and sort them,\n",
      "    ascending or descending, according to their function values.\n",
      "    \n",
      "    The reverse flag can be set to sort in descending order.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(立定跳远_男生.sort)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 90,
   "id": "8f307ba2",
   "metadata": {},
   "outputs": [],
   "source": [
    "立定跳远_男生.sort()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 91,
   "id": "f854b318",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[230, 245, 250, 255, 260, 270]"
      ]
     },
     "execution_count": 91,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "立定跳远_男生"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 92,
   "id": "5514cdeb",
   "metadata": {},
   "outputs": [],
   "source": [
    "立定跳远_男生.sort(reverse=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 93,
   "id": "daedf0e2",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[270, 260, 255, 250, 245, 230]"
      ]
     },
     "execution_count": 93,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "立定跳远_男生"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2780a9f7",
   "metadata": {},
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   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "975f19f4",
   "metadata": {},
   "source": [
    "# 2.while循环  \n",
    "\n",
    "* while True是循环概念中非常重要的一种方式。它可以实现for循环的指定次数，也可以在特定条件下停止"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 95,
   "id": "885cacee",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "你是风儿我是沙，缠缠绵绵到天涯... 0\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 1\n",
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      "你是风儿我是沙，缠缠绵绵到天涯... 82\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 83\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 84\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 85\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 86\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 87\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 88\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 89\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 90\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 91\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 92\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 93\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 94\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 95\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 96\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 97\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 98\n",
      "你是风儿我是沙，缠缠绵绵到天涯... 99\n"
     ]
    }
   ],
   "source": [
    "# 死循环  \n",
    "count = 0\n",
    "while True:\n",
    "    print(\"你是风儿我是沙，缠缠绵绵到天涯...\",count)\n",
    "    count = count+1\n",
    "    if count == 100:\n",
    "        break\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1a4d52b1",
   "metadata": {},
   "outputs": [],
   "source": [
    "## 小游戏：猜数字，5次\n",
    "# 1.hide_card :0-100, 大了，小了\n",
    "# 2.guess_digit : 50  \n",
    "count = 5\n",
    "hide_card = int(input(\"hide_card:\"))\n",
    "\n",
    "while True:\n",
    "    \n",
    "    guess_digit = int(input(\"猜一猜（0-100）:\"))\n",
    "\n",
    "# 对比：\n",
    "if hide_card == guess_digit:\n",
    "    print(\"你超棒！!!\")\n",
    "elif guess_digit>hide_card:\n",
    "    print(\"往小猜！加油！\")\n",
    "else:\n",
    "    print(\"往大的猜\")\n",
    "    "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "15478f27",
   "metadata": {},
   "source": [
    "# 课后练习：\n",
    "> 1.列表的切片和方法的使用\n",
    ">> 1.课本P67 练习   \n",
    ">> 2.课本P81 练习  \n",
    "> 2.P89"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b4b034f9",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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